"The wedding is off. Crystal has had a change of heart."
And with that message on his Twitter page — the same place where he announced the engagement last December -- Playboy founder Hugh Hefner, 85, told the world today that he won't be marrying one-time Playmate Crystal Harris on Saturday.
According to the Los Angeles Times' Ministry of Gossip blog, the 25-year-old Harris moved out of the Playboy Mansion over the weekend.
It was last Christmas Eve, Hef tweeted at the time, when he and Harris got engaged.